diff --git a/metal/README.md b/metal/README.md
index 90c517a2c10c28a9fcf26357e65ce2178a2fd8ac..2da6558b05b051b8b476f259d49fa3845e397b29 100644
--- a/metal/README.md
+++ b/metal/README.md
@@ -1,3 +1,12 @@
 ## Paddle-Mobile
 
-This folder is used to develop metal version for ios gpu
+需要: xcode、 cocoapods
+
+```
+pod install
+
+open paddle-mobile.xcworkspace
+
+```
+
+Demo 所需依赖的模型可在[这里](http://mms-graph.bj.bcebos.com/paddle-mobile%2FmodelsAndImages.zip)下载